Abstract
The purpose of this study is to evaluate the quality of groundwater for drinking and irrigation in the Avudaiyarkoil block of the Pudukottai district, which is a drought-prone region. Samples were collected from 20 wells on January 2021 and analysed for the water quality parameters, such as pH, EC, TDS, Ca2+, Mg2+, Na+, K+, Cl-, HCO3, SO4, NO3 and F-. The analysis revealed that SO4 is the dominant ion followed by Cl-, HCO3-, Na+, Ca2+, Mg2+, K+, NO3- and F- with respect to the mean value 292>234>208.4>125>100>24.75>18>16.15>0.2. The analytical results were compared with WHO and BIS guideline values to know the groundwater potability and TH, TA, SAR, Na%, RSC, PI, MgC and KI were calculated using the analytical results to identify the suitability of groundwater for irrigation purposes.
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